Instance Checklist for Changing SID and Hostname

Checklist Change SID

CHECKLIST CHANGE SID

Followings all the abbreviation used in this procedure/checklist

= SAP SID

SSID

= Source SID

TSID

= Target SID

= Host name

= SAP Instance number

= SAP Instance name (e.g. DVEBMGS00)

= Home directory of SAP Oracle user

= Home directory of SAP Administrator

= Directory containing SAP profiles

= Directory containing oracle TNS control files

= Oracle Home

Related Notes :

Metalink Oracle :

15390.1 How to Determine and Change DB_NAME or ORACLE_SID

131321.1 How to Relink Oracle Database Software on UNIX

SAP :

SAP R3 Homogenous System Copy Guides 4.6cSR2

NoActivitiesScript/Notes/AppStart TimeEnd TimeStatus/Remark

Stop all instance & database (if instance is up). For Flashcopy approach, do not shutdown the instance

Saplicense temp (installed new temp license as different hardware key)

Change hostname refer note 8307

1. /usr/sap/TCP/SYS/profiles (DEFAULT.PFL, TCP_DV*, START_*)

2. /home/tcpadm (stopsap* & startsap*)

3. .dbenv* .sapenv* (/home/tcpadm & /oracle/TCP)

4. TPPARAM & TPPARAM_TNB.PFL

5. tnsnames.ora & listener.ora

6. adapt table INSTVERS

Create new group (if not exist)

sapsys

dba

oper

Create new userid for new instance (if not exist)

ora (group : dba, oper)

adm (sapsys,dba,oper)

Reconfigure the mount point (Veritas) to accommodate the SID nameAppendix A

Change owner/group for following files/directories

Directory

/usr/sap/ ( adm:sapsys

/export/sapmnt/ ( adm:sapsys

/usr/sap/trans ( adm:sapsys

/oracle ( oraadm:dba

/oracle/ ( oraadm:dba

/oracle//sapreorg ( oraadm:dba

/oracle//saparch ( oraadm:dba

/oracle//sapdata ( oraadm:dba

/oracle//orilog ( oraadm:dba

/oracle//mirrlog ( oraadm:dbachown: runInstaller: A file or directory in the path name does not exist.

chown: libnavhoa.a: A file or directory in the path name does not exist.

chown: hsdb_ora.so: A file or directory in the path name does not exist.

chown: hsdb_odbc.so: A file or directory in the path name does not exist.

chown: hsdb_syb.so: A file or directory in the path name does not exist.

chown: ldflags: A file or directory in the path name does not exist.

chown: JRE: A file or directory in the path name does not exist.

chown: libctxx9.so: A file or directory in the path name does not exist.Remove softlink and create new link with new location

Change ownership

Ms

co

Se

dw

Rename the following files or the contents (database)

/init.ora

/init.sap

/init.dba

/init.utl

/init.bki

/.dbenv_.csh

/.dbenv_.sh

/.sapenv_.csh

/.sapenv_.sh

/tnsnames.ora & listener.ora Appendix B

Rename the following files/contents (SAP Instance)

/startsap__

/stopsap__

/.dbenv_.csh

/.dbenv_.sh

/.sapenv_.csh

/.sapenv_.sh

/__

/START__

/DEFAULT.PFL

/usr/sap//

Relinking Oracle

Only needed if :

An OS upgrade has occurred.

A change has been made to the OS system libraries. This can occur during the application of an OS patch.

A new install failed during the relinking phase.

Individual Oracle executables core dump during initial startup.

An individual Oracle patch has been applied (However, explicit relink instructions are usually either included in the README or integrated into the patch install script)

# su ora

# relink all

Dump control file to trace from source instance

sqlplus /as sysdba

alter database backup controlfile to trace;

Rename trace file to control.sql

# cd /oracle/TCC/saptrace/usertrace

# ls ltr

rename the last trace file to control.sql

Ftp control.sql from source to target instance

(location : /oracle/

Edit control.sql

1. change all source to new TSID

a. vi control.sql

b. :%s///g

2. change location of datafiles to accommodate new SID

a. (1st step already do that)

3. set database to resetlogs noarchivelog

a. vi control.sql

b. change CREATE CONTROLFILE REUSE DATABASE SSID NORESETLOGS ARCHIVELOG;

to

CREATE CONTROLFILE SET DATABASE TSID RESETLOGS ARCHIVELOG;Refer Appendix C for sample of control.sql

Remove existing controlfiles

Startup database with new control.sql

# sqlplus /as sysdba

SQL > startup nomount

SQL > @control.sql

SQL > RECOVER DATABASE USING BACKUP CONTROLFILE;

SQL > alter database open resetlogs;

exec(): 0509-036 Cannot load program oracleTCC because of the following errors:

0509-150 Dependent module libjox9.a(shr.o) could not be loaded.

0509-022 Cannot load module libjox9.a(shr.o).

0509-026 System error: A file or directory in the path name does not exist.

ERROR:

ORA-12547: TNS:lost contact

The global database name may also need to be changed:

SQL > alter database rename global_name to .

Change entry in /etc/services

sapms to sapms

Check sap license and hardware key

Change NFS setting /usr/sap/trans to point to production server

Start up SAP & oracleermsr3stg02:tccadm 26> startsap r3

Starting SAP-Collector Daemon

------------------------------

******************************************************************************

* This is Saposcol Version COLL 20.79 03/08/22 46D - AIX v4.14 5L-64 bit 031027

* Usage: saposcol -l: Start OS Collector

* saposcol -k: Stop OS Collector

* saposcol -d: OS Collector Dialog Mode

* saposcol -s: OS Collector Status

* Starting collector (create new process)

******************************************************************************

/usr/sap/tmp/dev_coll moved to /usr/sap/tmp/dev_coll.old

saposcol on host ermsr3prd03 started

Checking SAP R/3 TCC Database

------------------------------

Database is running

rm: 0653-609 Cannot remove /tmp/o.

Operation not permitted.

Could not remove directory /tmp/o

Remove this directory manually and restart again

Starting SAP R/3 Instance

------------------------------

Startup-Log is written to /home/tccadm/startsap_ermsr3stg02_00.log

Startup of Instance failed

See /home/tccadm/startsap_ermsr3stg02_00.log for details

Check ORACLE_SID and DB_NAME

SQL> select instance from v$thread;

INSTANCE

DB_SID

To find the current value of DB_NAME:

SQL> select name from v$database;

NAME

DBNAME

Check SAP

SM21 (System Logs)

ST22 (Abap dump)

SM51 (Instance Information)

SMLG (remove load balancing group)

SM37 (remove all jobs belongs to old SID)

Post Installation

SE06 Choose database copy or migration

Click post installation processing

Reconfigure STMS

- delete old STMS configuration and create new TMS

- change /etc/hosts to accommodate new IP

Change database to noarchivelog mode

Start client copy

Appendix A

Unmounting Old Filesystem

#!/bin/sh

echo "Start /sbin/helpers/vxfs/bin/umounting Veritas File Systems..."

umount /export/sapmnt/TCP

umount/usr/sap/TCP

umount /export/usr/sap/trans

umount /oracle

umount /oracle/TCP

umount /oracle/TCP/sapreorg

umount /oracle/TCP/origlogA

umount /oracle/TCP/origlogB

umount /oracle/TCP/mirrlogA

umount /oracle/TCP/mirrlogB

umount /oracle/TCP/saparch

umount /oracle/TCP/sapdata1









/sbin/helpers/vxfs/bin/umount -o suid /dev/vx/dsk/sapprddg/intf /export/intf

/sbin/helpers/vxfs/bin/umount -o suid /dev/vx/dsk/sapprddg/ixosexchange /export/ixos-exchange

/sbin/helpers/vxfs/bin/umount -o suid /dev/vx/dsk/sapprddg/infastage /export/infastage

Mounting New Filesystem

#!/bin/sh

echo "Start /sbin/helpers/vxfs/bin/mounting Veritas File Systems..."

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/sapmnt /export/sapmnt/TCC

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/saphome /usr/sap/TCC

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/saptrans /export/usr/sap/trans

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/oracle /oracle

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/orahome /oracle/TCC

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/sapreorg /oracle/TCC/sapreorg

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/origlogA /oracle/TCC/origlogA

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/origlogB /oracle/TCC/origlogB

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/mirrlogA /oracle/TCC/mirrlogA

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/mirrlogB /oracle/TCC/mirrlogB

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/saparch /oracle/TCC/saparch

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/sapdata1 /oracle/TCC/sapdata1









/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/intf /export/intf

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/ixosexchange /export/ixos-exchange

/sbin/helpers/vxfs/bin/mount -o suid /dev/vx/dsk/sapprddg/infastage /export/infastage

Appendix B

Parameters need to be changed

init.ora

db_name = TSID

control_files = new location

background_dump_dest = new location

user_dump_dest = new location

core_dump_dest = new location

log_archive_dest = new location

IFILE = new location (where applicable)

init.sap

backup_root_dir = new location

stage_root_dir = new location

compress_dir = new location

archive_copy_dir = new location

archive_stage_dir = new location

volume_archive = new naming convention

volume_backup = new naming convention

util_par_file = new location

initTCP.utl

BACKUPIDPREFIX = TSID_

CONFIG_FILE = new location

Appendix C

Sample of control.sql

#

# Set #2. RESETLOGS case

#

# The following commands will create a new control file and use it

# to open the database.

# The contents of online logs will be lost and all backups will

# be invalidated. Use this only if online logs are damaged.

STARTUP NOMOUNT

CREATE CONTROLFILE SET DATABASE "TCC" RESETLOGS ARCHIVELOG

-- SET STANDBY TO MAXIMIZE PERFORMANCE

MAXLOGFILES 255

MAXLOGMEMBERS 3

MAXDATAFILES 254

MAXINSTANCES 50

MAXLOGHISTORY 18151

LOGFILE

GROUP 15 (

'/oracle/TCC/origlogA/log_g15m1.dbf',

'/oracle/TCC/mirrlogA/log_g15m2.dbf'

) SIZE 80M,

GROUP 16 (

'/oracle/TCC/origlogB/log_g16m1.dbf',

'/oracle/TCC/mirrlogB/log_g16m2.dbf'

) SIZE 80M,

GROUP 17 (



) SIZE 80M,

GROUP 18 (



) SIZE 80M,

GROUP 19 (



) SIZE 80M,

GROUP 20 (



) SIZE 80M,

GROUP 21 (



) SIZE 80M,

GROUP 22 (



) SIZE 80M

-- STANDBY LOGFILE

DATAFILE

'/oracle/TCC/sapdata1/system_1/system.data1',

'/oracle/TCC/sapdata1/roll_1/roll.data1',




'/oracle/TCC/sapdata2/temp_1/temp.data1',




'/oracle/TCC/sapdata5/stabi_1/stabi.data1',



'/oracle/TCC/sapdata2/stabd_1/stabd.data1',




'/oracle/TCC/sapdata5/btabi_1/btabi.data1',











'/oracle/TCC/sapdata2/btabd_1/btabd.data1',


























'/oracle/TCC/sapdata6/pooli_1/pooli.data1',

'/oracle/TCC/sapdata1/poold_1/poold.data1',

'/oracle/TCC/sapdata1/clui_1/clui.data1',

'/oracle/TCC/sapdata2/clud_1/clud.data1',

'/oracle/TCC/sapdata5/clud_2/clud.data2',

'/oracle/TCC/sapdata4/ddici_1/ddici.data1',

'/oracle/TCC/sapdata1/ddicd_1/ddicd.data1',

'/oracle/TCC/sapdata6/docui_1/docui.data1',

'/oracle/TCC/sapdata2/docud_1/docud.data1',

'/oracle/TCC/sapdata4/el46ci_1/el46ci.data1',

'/oracle/TCC/sapdata6/el46cd_1/el46cd.data1',

'/oracle/TCC/sapdata5/loadi_1/loadi.data1',

'/oracle/TCC/sapdata1/loadd_1/loadd.data1',

'/oracle/TCC/sapdata2/proti_1/proti.data1',

'/oracle/TCC/sapdata3/protd_1/protd.data1',

'/oracle/TCC/sapdata6/es46ci_1/es46ci.data1',

'/oracle/TCC/sapdata7/es46cd_1/es46cd.data1',

'/oracle/TCC/sapdata1/sourcei_1/sourcei.data1',

'/oracle/TCC/sapdata4/sourced_1/sourced.data1',

'/oracle/TCC/sapdata2/user1d_1/user1d.data1',

'/oracle/TCC/sapdata3/user1i_1/user1i.data1',

'/oracle/TCC/sapdata3/protd_2/protd.data2',

'/oracle/TCC/sapdata8/ybmci_1/ybmci.data1',

'/oracle/TCC/sapdata8/ybmcd_1/ybmcd.data1',

'/oracle/TCC/sapdata8/bmcd_1/bmcd.data1',

'/oracle/TCC/sapdata9/ybmci_2/ybmci.data2',

'/oracle/TCC/sapdata9/ybmcd_2/ybmcd.data2',

'/oracle/TCC/sapdata9/clud_3/clud.data3'

CHARACTER SET WE8DEC

;

# Recovery is required if any of the datafiles are restored backups,

# or if the last shutdown was not normal or immediate.

# RECOVER DATABASE USING BACKUP CONTROLFILE

# Database can now be opened zeroing the online logs.

# ALTER DATABASE OPEN RESETLOGS;

# No tempfile entries found to add.

#

Documents

Instance Checklist for Changing SID and Hostname